My opinion is solely my own, and purely from a hobbyist point of view, and would be my own, personal wishlist. But I think it's great that we are discussing sections and it being implemented after all these years.
And I can certainly understand having just the 5 boroughs (Manhattan, Queens, Brooklyn, SI and the Bronx) and then LI and greater NY as just sections as a minimum.
But NY is a bit unique in that it's probably one of the largest communities for the hobby, and breaking NY into separate sections and subsections might be easier to navigate, especially since the site formatting doesn't allow less than 3 letter searches or filtering capabilities. Not saying that you're not familiar with NY, but the sheer volume of reviews coming from all various NY areas is quite large.
Also, from a mod point of view, it doesn't matter if there are subsections...when reviews come in for us to approve (or reject), it's section/subsection agnostic.